[PATCH 2/3] ARM/leds: move ARM Versatile LED driver to leds subsystem

[Linus Walleij]

On Thu, Feb 27, 2014 at 3:07 PM, Alexander Shiyan <shc_work at mail.ru> wrote:
> Четверг, 27 февраля 2014, 14:58 +01:00 от Linus Walleij <linus.walleij at linaro.org>:
>> Now that we have converted this driver to a real platform device
>> module-based thing, we move the driver down into the LEDs
>> subsystem and rename the config option to LEDS_VERSATILE.
>
> In fact, it can be converted to use basic-mmio-gpio => leds-gpio.

Hm, yeah I see what you mean. However this register is not described
as a GPIO register, and on all Versatile/RealView boards these signals
are soldered to LEDs, so they are not general purpose at all.

On some systems without "real" GPIO the above would lead to
compiling in the entire gpiolib (149 KB) just to do this.

I would agree more with inventing something like leds-mmio as a
separate refactoring after this, i.e. a driver for any memory-mapped
LED, which should cover a few cases. What do you think about this
idea?

Yours,
Linus Walleij